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If the work function of a metal is 6.63

WebIf the work function of a metal is 6.63 × 10-19 J, the maximum wavelength of the photon required to remove a photoelectron from the metal is nm. (Nearest integer) [Given: h=6.63 × 10-34 J s, and c =3 × 108 m s -1 ] Q. Web26 dec. 2024 · Answer: (E) = 1.54ev Explanation: Maximum kinetic energy of emitted photoelectrons = hf - Ф where h is Planck's constant = 6.63*10⁻³⁴ ,f is frequency = c/λ, c = velocity of light = 3.0*10⁸m/s, λ is wavelength of light = 310nm 310*10⁻⁹m, Ф = work function of metal = 2.46eV max K.E. = hc/λ - Ф

How to calculate the work function of a metal? Physics Forums

Web(a) If the work function for a certain metal is 1.5eV,what is the stopping potential for electrons ejected from the metal when the light of wavelength 500nM shines on the metal? (b) What is the maximum speed of the ejected electrons from … Web14 jul. 2013 · Calculate the work function of the metal. I did this: E=Ek+W W=E+Ek W=hc/Lambda -Ek = (6.63E-34J.s) (3.00E8m/s)/3.50E2m)-1.20eV =-1.2 That answer is wrong the correct one is 2.35 eV. what did i do wrong, PLS help me ty and show me what I should of done so i Dont repeat this mistake again. Answers and Replies Jul 14, 2013 #2 … chase up karachi shirts https://gtosoup.com

The work function of a metal is 3.0 eV. It is illuminated by a light …

WebA metal of work function 4eV is exposed to a radiation of wavelength 140 × 10-9min,Then the stopping potential developed by it (h = 6.63 × 10-34Js and c= 3× 108m/s) Q. A metal of work function 4eV is exposed to a radiation of wavelength 140 × 1 0 − 9 m in,Then the stopping potential developed by it ( h = 6.63 × 1 0 − 34 J s and c = 3 × 1 0 8 m / s ) Web31 aug. 2024 · The work function can be written as the following formula: Φ = − eφ − E F where e is the charge of an electron, φ is the electrostatic potential in the vacuum nearby … Web14 nov. 2024 · If the work function of a metal is 6.63×10−19 J, the maximum wavelength of the photon required to remove a photoelectron from the metal is nm. (Nearest integer) … custard\\u0027s only request was for a

If the work function of a metal is 6.63×10−19 J, the maximum wa.

Category:Stopping potential, Photoelectric work function, maximum kinetic …

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If the work function of a metal is 6.63

The work function (Φ) for a metal is 5.90*10^-19 J. What is the …

Web20 jul. 2011 · The point of calculating Planck's constant would be to assess the accuracy of your experiment. You can tell from the equation of the photoelectric effect that Planck's … http://structuredindependentlearning.com/docs/P30%20Lessons/P30%20Lessons%20pdf/L29%20Photoelectric%20effect.pdf

If the work function of a metal is 6.63

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WebA photo metal is illuminated by light of wavelengths λ1 and λ2 respectively. The maximum kinetic… When a metal surface is illuminated by a monochromatic light of wavelength λ, … WebLight shined on some metals emits electrons. Electrons are ejected immediately ... is the maximum kinetic energy of an emitted electron if light with a frequency of 2 x 10 15 …

Web28 feb. 2024 · Explanation: Einstein's photoelectric equation is: hf = Φ+ 1 2mv2 max, where: h = Planck's constant ( 6.63 ⋅ 10−34J s) f = frequency ( m) Φ = work function ( J) m = mass of the charge-carrier ( kg) vmax = maximum velocity ( ms−1) However, f = c λ, where: c = speed of light ( ~3.00⋅ 108ms−1) λ = wavelength ( m) hc λ = Φ + 1 2 mv2 max

Web12 jan. 2024 · So to solve it we are giving you the direction: Calculate the energy of photon E = hc/λ where h (planks constant) = 6.63 x 10-34 c = 3x 108 m/s λ = wavelength in metre of photon = 26.52 x 10-9 m Now divide the work function (in joule) by the energy of photon you will get the no. of photon.Read more on Sarthaks.com - … Web15 mrt. 2024 · - We have found the incident energy as $4.14eV$. From the above notion, we concluded that for photoelectric effect to occur, the energy of a photon must be greater …

Web29 mrt. 2024 · Question 9 Light of wavelength 2000 Å falls on a metal surface of work function 4.2 eV. (a) What is the kinetic energy (in eV) of the fastest electrons emitted …

WebConcept:. Photoelectric effect: When the photons fall on a metal surface then some electrons get ejected from the metal surface.This phenomenon is called the photoelectric effect.; Work function: The minimum energy needed to remove electrons from the metal surface is called the work function (φ) of that metal.; Maximum kinetic energy: The … chase up my dbsWebThe work function of a metal is 1.6 × 10 − 19 J. When the metal surface is illuminated by the light of wavelength 6400 Å, then the maximum kinetic energy of emitted photo … custard\\u0027s last stand menuWeb9 feb. 2024 · 5000 Å and the photoelectric work function of the metallic plate is 1.90 eV, find (a) Energy of the photon in eV (b) Kinetic energy of the photoelectrons emitted (c) … chase unlimited credit card scoreWebWe know that the threshold frequency of a metal surface is given as, ν ϕ ⇒ ν o = ϕ o h ⇒ ν o ∝ ϕ o ----- (1) Where h = Planck's constant = 6.63×10 -34 J-sec, and ϕ o = work … chase up log book dvlaWeb13. The threshold wavelength for emission from a metallic surface is 500 nm. What is the work function for that particular metal? Threshold frequency = c/λ Threshold frequency … custard\u0027s last stand ventnor cityWebTable 30.5 Work functions of several different metals. speed of light in a vacuum c = 3.00 × 10^ {8} m s^ {−1} c= 3.00×108 m s−1 Planck constant h = 6.63 × 10^ {−34} h = 6.63×10−34 J s mass of electron m_ {e} = 9.11 × 10^ {−31} me = 9.11×10−31 kg elementary charge e = 1.60 × 10^ {−19} e = 1.60×10−19 C Step-by-Step Verified Solution a Gold b … chase upcoming travelWebAnswer (1 of 2): Work function is property of material. It does not change with wavelength of emitted light wavelength or incident light wavelength. Work function = h×frequency … custard vs mousse